ISRC NLA507200243
Verified recording
NLA507200243 is “Mazurka No. 40 in F minor Op. 63 No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xe4dc64f008133a95753180fe48ae5c16a1ee242b4355e40a580ed1b746017e01 and independently timestamped
in Bitcoin block 960250 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507200243.
Recording identifiers
- ISRC
- NLA507200243
- Title
- Mazurka No. 40 in F minor Op. 63 No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xe4dc64f008133a95753180fe48ae5c16a1ee242b4355e40a580ed1b746017e01
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T11:13:28+00:00
- Bitcoin block
- 960250
- Canonical record hash
sha256:7f9d780316e937dbfc6d93360938ef3ab290b903050278965f9329b976ce9c63- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507200243
- Bitcoin block existence check
- https://blockstream.info/api/block/960250
Full record
Track page: Mazurka No. 40 in F minor Op. 63 No. 2 · Machine-readable JSON-LD